Lamp reflector



Sept. 17, 1929. F. 9. sum

LAMP REFLECTOR Filed Dec. 29, 1927 Enanli'H S Patented Sept. 17, 1929 UNITED STAT PATENT FRANK n. scram, on scnAN'ron; PENNSYLVAfiIA; Assmnon' on ONE-FOURTH 'ro ANNAT no swam, ONE-FOURTH T GEORGE, w. THOMAQ: AND ONE-FOURTH T0 SIMON GROSSINGER, ALL' or SCRANTON, PENNSYLVANIA,

LAMP REFLECTOR Application filed. December 29, 1927. SeriaYNd. 243,336; 8

The prime object ofthis invention is' to provide a mirror reflector adapted to aid in whereby the readingthe' gas lamp tester, lamp-may belowered into a manhole or any other-opening where there is supposed to be and the mirror reflector may be so ad'usted that thereading may be easily gas, or the like,

accomplished, thereby avoidin'g'the danger of'being overcome by objectionable fumes,

which" often occurs when it is found necessary to personally enter'the'm'anhole oropening.

Other objects of this invention will ap pear from the following" detailed disclosure of the device and is'clearly'disclosedin the single sheet of drawings, which are herewith made a part of this application."

In the drawings- Figure 1 illustrates a'perspective'view' of a gas lamp tester showing the mirrorreflector in assembled relationship thereto.

FigureQ represents a side elevational view ofjthe lamp tester showing the reflector in adjusted position thereon.

Figure 3 illustrates a top planviewof'the reflec tor detached from the lamp tester.

Figure 4 illustrates abottom planview of the reflector detached from the lamptester'.

Figure 5 illustrates a clamping niemberfor holding the reflector in operable relationship with the lamp tester.

Thisinvention' provides an adjustable reflector'in combination with a gaslamp tester, or other suitable device upon which the reflector may b'e'used to advantage,c0mprising a gas lamp tester having amain body portion 1, a base portion2, the main body and base portions being I by means of'a'plurality of rods, such as 3, 4,

5 and 6, made of any suitable material. Be tween the main body and base portions land 2 is also commonly positioned a glass or other transparentportion 7 made of'any shape detailed view of the held in spaced relationship adaptable for the purpose and formed to enclose the flame or jet andother features required in a gaslam tester; The transpar ent" portion 7' is pre erably oftubular' shape and is adapted to have longitudinally posi tioned thereon a coating 8 of black.material,1

such as shellac, paint or'o th'erwise Y Removably positioned within 'thebase por'- tion Zofthe lamp is acont'ainer for-holding" the fuel adapted to supply the wickmember' 10,*which functions to produce, when ignited,

the necessary jet or flame for the lamp. Sup ported -'by the" container 9 and extending a' suitable'distance'above the wick 10 is ,a frame 11, made of-wire or otherwise for holding in.

proper position-the sensitive testing filaments 12. Themain body or upper portion of the, lamp 1 isadapted to be constructed "in sucha manner that the gas fumes or'other obj ectionable elements may circulate freely therethrough into the cli'amberformed by the glass container 7' and registering on" the filaments-12;

' Inordento provide suitable" reflecting means for easily reading the tester when lowered into a manhole',jor' otherz'similar' position, it is preferred in I this invention to provide 'a' mirror reflector having adjustable means both perpendicularly and angularly of' the lamp and 1 means for" clamping the reflector firmly in any" desired position wherein numeral l3 designates a suitablesupporting member for'the reflector and adapted to beheld in' operable position by;

the two adjacent supporting rods for the main bodyportion l, suchasrods' 3' and i,

The supporting member 13 for" the reflector may be made'ofan desirable-material and preferably of rod s ape, threaded portions i 14: and

manually operated for bringing the required tension when needed. Thesupjp'orting menn ber' 13" isadapted to be rotatably mounted in a pairof bearings 16 and 17 Whichare preferably integrally formed from a pair of sleeve portions '18 and 19,which'are in turn slidably positioned on the rods 3 and 4; which support in part the main body 1 and base portion in spaced relationship;

having at oneen'd a't'the otherend an element 15, which maybe easily and ing in the reading of lamp testers for The main body portion 20 of the reflector is adapted to be made of any suitable material, such as brass or otherwise, to conform with the type of material used in the supports 3 and 4t and supporting member 13. The main portion 20 consists of a frame section having turned in edges 21 for receiving in slidable relationship therewith a mirror portion 22 or other suitable reflecting element. In order to re-enforce the turned in portions 21 of the main portion 20, a cross brace 23 may be positioned in the rear of the mirror member 22 extending between the two free ends of the turned .in edges in such a manner as not only to re-enforce the main portion 20. but also to act as an additional support for the mirror22... Positioned along the lower edge ofthe main portion 20 and preferably integrally formed therewith is a tubular element 25 adaptedto be rotatably mounted upon the supporting member 13 between therod members 3 and 4 and the bearing portions 16and 17, thereby providing a supporting means forrthe mirror 22 which may beseasily adjusted to any desired position alongthe rods 3 and 4 and, at the same time, the mirror, being pivotally mounted on the member 13, may be adjusted at any desired angle with the perpendicular. In positioning the mirror upon-the supporting member 13, it is merely necessary to release the threaded portion 14 of the member 13 from the co-operating threaded portion 24 of the bearing 16 and withdraw the rod 13 a-Ysuflicient distance through the bearing member 17 in order to admit the tubular element 25 into a location where the supporting member 13 may be inserted therethrough and again be brought into threaded relationship with the bearing 16, thereby providing a means bywhichthe mirror may be firmly held under tension in any desired position along the rods 3 and 4, the reflecting mirror 22 being preferably located opposite the darkened or painted portion 8 of the glass container 7 and having the filaments 12 therebetween.

In operation, this invention provides a mirror reflector particularly adapted for aidgas fumes or the like. The gas tester, as herein described and claimed, may be used particu larly in the coal regions for testing the gas in mines or otherwise, as well as for testing the gases in sewers through manholes and other similar places. The particular arrangement: of the reflecting mirror in this invention permits the lamp to be lowered into a manhole or other place where there is supposed to be gas fumes and the mirror may easily be adjusted as described so as to aid in reading the registration regarding the presence of gas or. otherwise.

This invention eliminates entirely the g danger of -'being overcome with the gas fumes, as often happens in cases where people have been obliged to enter into places of the type described.

It is to be understood that alterations and substitutions may be made in the above disclosure, including the drawings, within the scope of the appended claims without affecting the merits of this invention.

What I claim is:

1. In a gas lamp tester, a main body portion, a lower section, supporting members for holding the main body portion and lower sec tion in spaced relationship, a transparent casing therebetween having a darkened section, a mirror reflector oppositely positioned to the darkened section, a lamp burner between the mirror reflector and the darkened section, filaments for registering gas fumes positioned above the burner and between the mirror and darkened section.

2. In a gas lamp tester, a main body portion, a lower section, supporting members for holding the main body portion and lower section in spaced relationship, a transparent casing therebetween having a darkened section, a mirror reflector oppositely positioned to the darkened section, a lamp burner between the mirror reflector and the darkened section, filaments for registering gas fumes positioned above the burner and between the mirror and darkened section, elements slidably positioned on the supporting members for adjusting the mirror reflector in the desired angular relationship to the burner and filaments.

3. In a gas lamp tester, a main body portion, a lower section, supporting members for holding the main body portion and lower section in spaced relationship, a transparent casing therebetween having a darkened section, a mirror reflector oppositely positioned to the darkened section, a lamp burner be tween the mirror reflector and the darkened section, filaments for registering gas fumes positioned above the burner and between the mirror and darkened sect-ion, elements slidably positioned on the supporting members for adjusting the mirror reflector in the clesired angular relationship to the burner and filaments. comprising a tubular element for holding the mirror, a cross bar adjustably positioned between the supporting members for rotatably receiving the tubular element, clamping means for firmly holding the tubular element in fixed position along the sup porting members.

4. In a gas lamp tester, a main body portion, a lower section, supporting members for holding the main body portion and lower section in spaced relationship, a transparent casing therebetween having a darkened section, a mirror reflector oppositely positioned to the darkened section, a lamp burner between the mirror reflector and the darkened section, filaments for registering gas fumes positioned above the burner and between the mirror and darkened section, elements slidably positioned on the supporting members for adjusting the mirror reflector in the desired angular relationship to the burner and filaments, comprising a tubular element for holding the mirror, a cross bar adjustably positioned between the supporting members for rotatably receiving the tubular element, clamping means for firm- 1y holding the tubular element in fixed position along the supporting members, consisting of a threaded portion at one end of the cross bar and an operating thumb member at the opposite end, the threaded end of the cross bar being adapted to cooperate with one of the supporting members in such a manner that when the thumb member is turned the tubular element and mirror may be released or clamped firmly in desired position between the supporting members.

In testimony whereof I aflix my signature.

FRANK H. STAIR. 

